Authorization Method and Network Element

6. The method according to claim 1, wherein the authorization request message further comprises an application identifier, and the authorization response message comprises the authorization result that is obtained by the authorization server by performing authorization based on the second user identifier, the application identifier, and the resource usage request message.

15. The network element according to claim 10, wherein the authorization request message further comprises an application identifier, and the authorization response message comprises the authorization result that is obtained by the authorization server by performing authorization based on the second user identifier, the application identifier, and the resource usage request message.

16. The network element according to claim 10, wherein the authorization request message further comprises a first message authentication code, and the first message authentication code is used by the authorization server to verify security of the authorization request message; and the authorization response message further comprises a second message authentication code, and the second message authentication code is used by the hardware processor to verify security of the authorization response message.